html, body, div, span, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
abbr, address, cite, code,
del, dfn, em, img, ins, kbd, q, samp,
small, strong, sub, sup, var,
b, i,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, figcaption, figure,
footer, header, hgroup, menu, nav, section, summary,
time, mark, audio, video {
    margin:0;
    padding:0;
    border:0;
    outline:0;
    font-size:100%;
    vertical-align:baseline;
    background:transparent;
    list-style:none;
}
*{
    font-family: '微软雅黑';
    box-sizing: border-box;
}
body {
    line-height:1;
    background-color: #f4f4f5;
}
a {
    margin:0;
    padding:0;
    border:0;
    font-size:100%;
    text-decoration:none;
    vertical-align:baseline;
    background:transparent;
}